The theory behind why antipsychotic drugs seem to work focuses on which neurotransmitter system?

A) GABA
B) dopamine
C) acetylcholine
D) norepinephrine

The theory behind why antipsychotic drugs seem to work focuses on the dopamine neurotransmitter system. Antipsychotics work by blocking dopamine receptors in the brain, particularly in the mesolimbic pathway, which is involved in the reward and emotion processing. A surplus of dopamine activity in this pathway has been linked to psychosis, and reducing this excess dopamine activity can improve symptoms of psychosis.